The cause of a structure fire at the Scoular property on Manitoba Road Winkler is still under investigation.

Winkler fire crews were dispatched to the fire just after 5:30 this morning and were on scene for four and a half hours.

Fire Chief Richard Paetzold says the fire started below the off-loading deck, under the scale and office area of the building.

He says the "awkward access" to the fire did create an obstacle for crews, however, they were successful in extinguishing the blaze and ensuring flames did not spread further.